Affiliation: | Department of Respiratory Disease, Thoracic Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, People’s Republic of China;Department of Respiratory Disease, Jinyun People’s Hospital, Jinyun, People’s Republic of China;Department of Respiratory Disease, Thoracic Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, People’s Republic of China |